1-169121474-T-C

Position:

• chr1-169121474-T-C

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_001677.4(ATP1B1):​c.227-3410T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.521 in 152,002 control chromosomes in the GnomAD database, including 21,136 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.52 (21136 hom., cov: 32)
• Consequence: ATP1B1 NM_001677.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.94

Genes affected

ATP1B1 (HGNC:804): (ATPase Na+/K+ transporting subunit beta 1) The protein encoded by this gene belongs to the family of Na+/K+ and H+/K+ ATPases beta chain proteins, and to the subfamily of Na+/K+ -ATPases. Na+/K+ -ATPase is an integral membrane protein responsible for establishing and maintaining the electrochemical gradients of Na and K ions across the plasma membrane. These gradients are essential for osmoregulation, for sodium-coupled transport of a variety of organic and inorganic molecules, and for electrical excitability of nerve and muscle. This enzyme is composed of two subunits, a large catalytic subunit (alpha) and a smaller glycoprotein subunit (beta). The beta subunit regulates, through assembly of alpha/beta heterodimers, the number of sodium pumps transported to the plasma membrane. The glycoprotein subunit of Na+/K+ -ATPase is encoded by multiple genes. This gene encodes a beta 1 subunit. Alternatively spliced transcript variants encoding different isoforms have been described, but their biological validity is not known. [provided by RefSeq, Mar 2010]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.91).
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.669 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ATP1B1	NM_001677.4	c.227-3410T>C		intron_variant		ENST00000367815.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ATP1B1	ENST00000367815.9	c.227-3410T>C		intron_variant		1	NM_001677.4	P1

Frequencies

GnomAD3 genomes AF: 0.521 AC: 79132 AN: 151884 Hom.: 21127 Cov.: 32

Gnomad AFR AF: 0.406

Gnomad AMI AF: 0.656

Gnomad AMR AF: 0.583

Gnomad ASJ AF: 0.477

Gnomad EAS AF: 0.688

Gnomad SAS AF: 0.495

Gnomad FIN AF: 0.609

Gnomad MID AF: 0.528

Gnomad NFE AF: 0.552

Gnomad OTH AF: 0.546

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.521 AC: 79180 AN: 152002 Hom.: 21136 Cov.: 32 AF XY: 0.525 AC XY: 38987 AN XY: 74310

Gnomad4 AFR AF: 0.406

Gnomad4 AMR AF: 0.583

Gnomad4 ASJ AF: 0.477

Gnomad4 EAS AF: 0.688

Gnomad4 SAS AF: 0.494

Gnomad4 FIN AF: 0.609

Gnomad4 NFE AF: 0.552

Gnomad4 OTH AF: 0.545

Alfa AF: 0.460 Hom.: 2120

Bravo AF: 0.517

Asia WGS AF: 0.586 AC: 2037 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.91
CADD	Benign	0.25
DANN	Benign	0.44

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs3766039; hg19: chr1-169090712;